Stable Numbers
Percentage Proportion
Enter a total and assign percentages to each part. Get the split amounts instantly.
About the proportion tool
This calculator lets you take a total and split it into parts based on percentages you choose. Type the total, assign each slice its percentage, and the tool shows the actual values for each. It is a practical way to share out a budget, divide time, or plan resources.
A key use is in budgeting. For example, if you want 50% of a £1,000 budget to go to savings, 30% to bills and 20% to fun, the calculator tells you the pound figures instantly. It keeps the maths clean and avoids mistakes, especially when dealing with decimals. You can label each row to match your categories, which makes copying results into a plan even easier.
Percentages keep everyone on the same page. They also make scaling easy. If the total changes, the tool recalculates all parts automatically. Stable Numbers builds tools like this to take the effort out of small but repeated tasks. It is quick, accurate and clear, ready for you to use straight away.